Patent US5061389A successfully refreshed from Google Patents.
US2940408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube former and method of making same
Assignee: Unisys Corp
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Filing: 1959-01-21
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Granted: 1960-06-14
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Expires: 1979-01-21
Abstract
No abstract record available.
Inventors
- 👤 Claude E Monsees
- 👤 Francis H Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:46
CPC Classifications
B; B65; B65B; B65B9/00; B65B9/10; B65B9/20; B65B9/22; B21; B21D; B21D5/00; B21D5/06; B21D5/10; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49995; Y10T428/00; Y10T428/12; Y10T428/12354
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2285263A
Cited
US2899875A
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US2431411A
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US2621622A
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US2602988A
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US2832271A
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US2869499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |